Skip to content
This repository


Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP

Ruby interface to 'jpegtran' tool.

branch: master

Fetching latest commit…


Cannot retrieve the latest commit at this time

Octocat-spinner-32 lib
Octocat-spinner-32 .document
Octocat-spinner-32 .gitignore
Octocat-spinner-32 CHANGES.txt
Octocat-spinner-32 Gemfile
Octocat-spinner-32 Gemfile.lock
Octocat-spinner-32 LICENSE.txt
Octocat-spinner-32 Rakefile
Octocat-spinner-32 VERSION
Octocat-spinner-32 jpegtran.gemspec
Octocat-spinner-32 test
Octocat-spinner-32 test.jpg


Jpegtran provides Ruby interface to the jpegtran tool. Some examples follow: (for details, see module documentation)

require "jpegtran"

Jpegtran.available?    # will return true (or false)

Jpegtran.optimize("foo.jpg", { :progressive => true, :optimize => true })
# will run 'jpegtran -progressive -optimize -outfile foo.jpg foo.jpg'

It can be also run asynchronously by non-blocking way (with eventmachine) simply by giving block to #optimize. See documentation.

Unsupported Options

The -maxmemory N option isn't supported.


  1. Fork it.
  2. Create a branch (git checkout -b 20101220-my-change).
  3. Commit your changes (git commit -am "Added something").
  4. Push to the branch (git push origin 20101220-my-change).
  5. Create an Issue with a link to your branch.
  6. Enjoy a refreshing Diet Coke and wait.


Copyright © 2011 Martin Kozák. See LICENSE.txt for further details.

Something went wrong with that request. Please try again.